Sodium Nitrate

High Concern

Preservative

Also known as

sodium nitratee251nitrate

The concern

Converts to nitrite in the body; linked to colorectal cancer risk when consumed in processed meats. IARC Group 2A probable carcinogen (endogenous nitrosation).

Read the source: IARC / WHO

What to look for on labels

This ingredient may appear under any of the following names or codes on product labels:

Sodium Nitrate
sodium nitrate
e251
nitrate

Learn more

Read the full evidence directly from the authoritative source.

View source: IARC / WHO

Commonly found in

Processed meats, canned foods, packaged snacks, bread, ready meals

Related findings on ProductSafer

Dubai and Philippines invest in food testing labs🍎 Food

Food Testing Labs Launch in Dubai and Philippines to Screen for Viruses and Nitrates

Dubai and the Philippines are building new food testing labs to detect harmful viruses and nitrate contamination in food. These investments matter because foodborne viruses and excess nitrates can cause serious illness in consumers. Better testing helps catch unsafe food before it reaches your table.

Medium Concern

📰 News reportFood Safety News

11May 13, 2026

Search all findings for Sodium Nitrate →

Other preservatives to know about

Sodium Nitrite

HIGH

IARC classifies processed meat containing nitrites as a Group 1 carcinogen (causes colorectal cancer).

Sodium Benzoate

MEDIUM

Reacts with Vitamin C (ascorbic acid) in drinks to form benzene, an IARC Group 1 carcinogen.

Butylparaben

HIGH

Endocrine disruptor that mimics oestrogen.

Propylparaben

HIGH

Endocrine disruptor; affects testosterone and male reproductive function in animal studies.

Data sourced from IARC, FDA, EFSA, WHO and EWG public data. For informational purposes only. This does not constitute medical or legal advice.

← Back to Ingredient Safety Database